Hello, Welcome to icliniq.com. Yes, you need to visit your dentist as early as possible. Those green lines are basically a form of "calcified plaque or calculus" in medical term and the reason behind their green color can be chromogenic bacteria. These plaques are needed to be removed at the earliest otherwise they will become much more heavy in bulk and will degrade the underlying bone which is supporting your tooth and in advanced stages it may lead to tooth mobility, gum recession and in severe cases it can even lead to loss of tooth. But, you do not have to worry about that cause your disease is already diagnosed.
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